~ubuntu-branches/ubuntu/lucid/gnome-power-manager/lucid

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-

 *

 * Copyright (C) 2005-2007 Richard Hughes <richard@hughsie.com>

 *

 * Taken in part from:

 *  - lshal   (C) 2003 David Zeuthen, <david@fubar.dk>

 *  - notibat (C) 2004 Benjamin Kahn, <xkahn@zoned.net>

 *

 * Licensed under the GNU General Public License Version 2

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 */

#include "config.h"

#include <string.h>

#include <unistd.h>

#include <stdlib.h>

#include <errno.h>

#include <locale.h>

#include <glib.h>

#include <glib/gi18n.h>

#include <gtk/gtk.h>

#include <dbus/dbus-glib.h>

#include <dbus/dbus-glib-lowlevel.h>

#include "gpm-stock-icons.h"

#include "gpm-common.h"

#include "gpm-manager.h"

#include "gpm-session.h"

#include "org.gnome.PowerManager.h"

#include "egg-debug.h"

/**

 * gpm_object_register:

 * @connection: What we want to register to

 * @object: The GObject we want to register

 *

 * Register org.gnome.PowerManager on the session bus.

 * This function MUST be called before DBUS service will work.

 *

 * Return value: success

 **/

static gboolean

gpm_object_register (DBusGConnection *connection,

		     GObject	     *object)

{

	DBusGProxy *bus_proxy = NULL;

	GError *error = NULL;

	guint request_name_result;

	gboolean ret;

	bus_proxy = dbus_g_proxy_new_for_name (connection,

					       DBUS_SERVICE_DBUS,

					       DBUS_PATH_DBUS,

					       DBUS_INTERFACE_DBUS);

	ret = dbus_g_proxy_call (bus_proxy, "RequestName", &error,

				 G_TYPE_STRING, GPM_DBUS_SERVICE,

				 G_TYPE_UINT, 0,

				 G_TYPE_INVALID,

				 G_TYPE_UINT, &request_name_result,

				 G_TYPE_INVALID);

	if (error) {

		egg_debug ("ERROR: %s", error->message);

		g_error_free (error);

	}

	if (!ret) {

		/* abort as the DBUS method failed */

		egg_warning ("RequestName failed!");

		return FALSE;

	}

	/* free the bus_proxy */

	g_object_unref (G_OBJECT (bus_proxy));

	/* already running */

 	if (request_name_result != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {

		return FALSE;

	}

	dbus_g_object_type_install_info (GPM_TYPE_MANAGER, &dbus_glib_gpm_manager_object_info);

	dbus_g_error_domain_register (GPM_MANAGER_ERROR, NULL, GPM_MANAGER_TYPE_ERROR);

	dbus_g_connection_register_g_object (connection, GPM_DBUS_PATH, object);

	return TRUE;

}

/**

 * timed_exit_cb:

 * @loop: The main loop

 *

 * Exits the main loop, which is helpful for valgrinding g-p-m.

 *

 * Return value: FALSE, as we don't want to repeat this action.

 **/

static gboolean

timed_exit_cb (GMainLoop *loop)

{

	g_main_loop_quit (loop);

	return FALSE;

}

/**

 * gpm_main_stop_cb:

 **/

static void

gpm_main_stop_cb (GpmSession *session, GMainLoop *loop)

{

	g_main_loop_quit (loop);

}

/**

 * gpm_main_query_end_session_cb:

 **/

static void

gpm_main_query_end_session_cb (GpmSession *session, guint flags, GMainLoop *loop)

{

	/* just send response */

	gpm_session_end_session_response (session, TRUE, NULL);

}

/**

 * gpm_main_end_session_cb:

 **/

static void

gpm_main_end_session_cb (GpmSession *session, guint flags, GMainLoop *loop)

{

	/* send response */

	gpm_session_end_session_response (session, TRUE, NULL);

	/* exit loop, will unref manager */

	g_main_loop_quit (loop);

}

/**

 * main:

 **/

int

main (int argc, char *argv[])

{

	GMainLoop *loop;

	DBusGConnection *system_connection;

	DBusGConnection *session_connection;

	gboolean verbose = FALSE;

	gboolean version = FALSE;

	gboolean timed_exit = FALSE;

	gboolean immediate_exit = FALSE;

	GpmSession *session = NULL;

	GpmManager *manager = NULL;

	GError *error = NULL;

	GOptionContext *context;

	gint ret;

	const GOptionEntry options[] = {

		{ "verbose", '\0', 0, G_OPTION_ARG_NONE, &verbose,

		  N_("Show extra debugging information"), NULL },

		{ "version", '\0', 0, G_OPTION_ARG_NONE, &version,

		  N_("Show version of installed program and exit"), NULL },

		{ "timed-exit", '\0', 0, G_OPTION_ARG_NONE, &timed_exit,

		  N_("Exit after a small delay (for debugging)"), NULL },

		{ "immediate-exit", '\0', 0, G_OPTION_ARG_NONE, &immediate_exit,

		  N_("Exit after the manager has loaded (for debugging)"), NULL },

		{ NULL}

	};

	setlocale (LC_ALL, "");

	bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR);

	bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");

	textdomain (GETTEXT_PACKAGE);

	if (! g_thread_supported ())

		g_thread_init (NULL);

	dbus_g_thread_init ();

	g_type_init ();

	context = g_option_context_new (N_("GNOME Power Manager"));

	/* TRANSLATORS: program name, a simple app to view pending updates */

	g_option_context_add_main_entries (context, options, GETTEXT_PACKAGE);

	g_option_context_set_translation_domain(context, GETTEXT_PACKAGE);

	g_option_context_set_summary (context, _("GNOME Power Manager"));

	g_option_context_parse (context, &argc, &argv, NULL);

	if (version) {

		g_print ("Version %s\n", VERSION);

		goto unref_program;

	}

	if (!g_thread_supported ())

		g_thread_init (NULL);

	dbus_g_thread_init ();

	gtk_init (&argc, &argv);

	egg_debug_init (verbose);

	egg_debug ("GNOME %s %s", GPM_NAME, VERSION);

	/* check dbus connections, exit if not valid */

	system_connection = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error);

	if (error) {

		egg_warning ("%s", error->message);

		g_error_free (error);

		egg_error ("This program cannot start until you start "

			   "the dbus system service.\n"

			   "It is <b>strongly recommended</b> you reboot "

			   "your computer after starting this service.");

	}

	session_connection = dbus_g_bus_get (DBUS_BUS_SESSION, &error);

	if (error) {

		egg_warning ("%s", error->message);

		g_error_free (error);

		egg_error ("This program cannot start until you start the "

			   "dbus session service.\n\n"

			   "This is usually started automatically in X "

			   "or gnome startup when you start a new session.");

	}

	/* add application specific icons to search path */

	gtk_icon_theme_append_search_path (gtk_icon_theme_get_default (),

                                           GPM_DATA G_DIR_SEPARATOR_S "icons");

	loop = g_main_loop_new (NULL, FALSE);

	/* optionally register with the session */

	session = gpm_session_new ();

	g_signal_connect (session, "stop", G_CALLBACK (gpm_main_stop_cb), loop);

	g_signal_connect (session, "query-end-session", G_CALLBACK (gpm_main_query_end_session_cb), loop);

	g_signal_connect (session, "end-session", G_CALLBACK (gpm_main_end_session_cb), loop);

	gpm_session_register_client (session, "gnome-power-manager", getenv ("DESKTOP_AUTOSTART_ID"));

	/* create a new gui object */

	manager = gpm_manager_new ();

	if (!gpm_object_register (session_connection, G_OBJECT (manager))) {

		egg_error ("%s is already running in this session.", GPM_NAME);

		return 0;

	}

	/* register to be a policy agent, just like kpackagekit does */

	ret = dbus_bus_request_name(dbus_g_connection_get_connection(system_connection),

				    "org.freedesktop.Policy.Power",

				    DBUS_NAME_FLAG_REPLACE_EXISTING, NULL);

	switch (ret) {

	case DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER:

		egg_debug ("Successfully acquired interface org.freedesktop.Policy.Power.");

		break;

	case DBUS_REQUEST_NAME_REPLY_IN_QUEUE:

		egg_debug ("Queued for interface org.freedesktop.Policy.Power.");

		break;

	default:

		break;

	};

	/* Only timeout and close the mainloop if we have specified it

	 * on the command line */

	if (timed_exit) {

		g_timeout_add_seconds (20, (GSourceFunc) timed_exit_cb, loop);

	}

	if (immediate_exit == FALSE) {

		g_main_loop_run (loop);

	}

	g_main_loop_unref (loop);

	g_object_unref (session);

	g_object_unref (manager);

unref_program:

	g_option_context_free (context);

	return 0;

}